Update index.html

index.html

@@ -39,7 +39,8 @@
 	<tbody>
 		<tr>
 			<td><button id="replace-spaces-button" title="Divide text into bubbles
-Replace ' ' with ', '" class="buttons">💔</button></td>
+Replace ' ' with ', '
+and ',' with ', '" class="buttons">💔</button></td>
 			<td><button id="revert-spaces-button" title="Combine all
 Replace ', ' with ' '" class="buttons">🩹</button></td>
 		</tr>